haybales1283 haybales1283

22-09-2017
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(lc)which african-american inventor received numerous patents for improvements on the functioning of steam engines?

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anniefaithoid anniefaithoid

22-09-2017

Elijah McCoy was the african-american inventor that received numerous patents for improvements on the functioning of steam engines.

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ashleyyarbrough1 ashleyyarbrough1

15-07-2018

the answer is Elijah McCoy

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